LED display method with volume level indication and playing and singing guidance

Abstract

The invention relates to the technical field of computers, in particular to an LED display method with volume level indication and playing and singing guidance, and the method comprises the steps: collecting a playing audio signal of a user in real time when the user carries out playing, carrying out the preprocessing of the playing audio signal, carrying out the analysis of the preprocessed playing audio signal, and carrying out the display of the volume level indication and playing and singing guidance. Extracting corresponding music elements, wherein the music elements comprise volume, intonation and rhythm; the display mode of an LED lamp is adjusted according to the music elements, volume level indication and playing and singing guidance are sent to a user based on the display mode of the LED lamp, and the display mode comprises LED lamp brightness and flicker frequency; and judging whether the user plays correctly or not, when the user plays correctly, the LED lamp displays green and continues, when the user plays wrongly, the LED lamp displays red and continues, and if the continuous playing is wrong, the LED lamp displays red and flickers. According to the invention, richer and more personalized teaching experience can be provided.

Description

Technical Field

[0001] The present application relates to the technical field of computers, and in particular to an LED display method with volume level indication and singing and playing guidance. Background Art

[0002] With the development of science and technology, more and more smart devices are being used in music teaching and performance. Traditional music teaching methods mainly rely on teachers' verbal guidance and written materials, which are inefficient and difficult to meet personalized needs. In recent years, some smart musical instruments have begun to use LED lights to assist teaching, such as using lights to prompt users to the correct key position, but these methods usually only provide simple visual feedback and lack comprehensive guidance on musical elements such as volume, pitch and rhythm.

[0003] In addition, most existing LED display methods only focus on single visual feedback and fail to fully utilize the synergy of multiple senses, resulting in poor user experience. At the same time, these methods also lack intelligent recognition and response capabilities and cannot provide timely and effective feedback based on the user's actual performance.

[0004] Therefore, a new LED display method is needed that can integrate volume level indication and singing and playing guidance to provide a richer and more personalized teaching experience while improving users' learning efficiency and performance level. Summary of the invention

[0005] In order to provide a richer and more personalized teaching experience, the present application provides an LED display method with volume level indication and singing and playing guidance.

[0006] In the first aspect, the present application provides an LED display method with volume level indication and singing and playing guidance, which adopts the following technical solution: The invention discloses an LED display method with volume level indication and playing and singing guidance, comprising: when a user is playing, real-time collecting the user's playing audio signal, preprocessing the playing audio signal, analyzing the preprocessed playing audio signal, and extracting corresponding music elements, wherein the music elements include volume, pitch and rhythm; adjusting the display mode of an LED lamp according to the music elements, sending the volume level indication and playing and singing guidance to the user based on the display mode of the LED lamp, wherein the display mode includes the brightness and flashing frequency of the LED lamp; judging whether the user plays correctly, when the user plays correctly, the LED lamp displays green and continuously, when the user plays incorrectly, the LED lamp is controlled to display red and continuously, and if the playing error continues, the LED lamp is controlled to display red and flash.

[0007] By adopting the above technical solutions, a richer and more personalized teaching experience is provided for music learners by integrating real-time audio analysis and visual feedback mechanisms. It can not only instantly reflect key musical elements such as volume, pitch and rhythm in the performance, but also intuitively guide users to improve their performance skills by adjusting the brightness and flashing frequency of the LED light. In particular, this method introduces correct performance feedback - when the user plays correctly, the LED light remains green, and in the face of errors, it prompts in red, and flashes when the errors continue, which effectively enhances the user's self-correction ability. This instant and intuitive interactive method greatly improves learning efficiency, allowing users to gain a deeper understanding and skill improvement in practice, while encouraging them to continue to try and explore, and ultimately optimize personalized learning paths.

[0008] Optionally, the method also includes: analyzing the preprocessed performance audio signal and decomposing it into at least two frequency bands, and each frequency band corresponds to a specific frequency range; assigning a specific color to each frequency band for corresponding LED light indication; when performing, determining the corresponding actual volume based on the performance audio signal, and adjusting the brightness and flashing frequency of the corresponding LED light based on the actual volume of each frequency band.

[0009] By adopting the above technical solutions, more detailed and comprehensive volume feedback is provided, and the user's understanding of volume changes in different frequency ranges is enhanced. This method allows users to intuitively see the actual volume level of each frequency band during performance, and to achieve precise control of the volume by adjusting the brightness and flashing frequency of the corresponding LED lights. This combination of multi-band volume analysis and visual feedback not only helps users grasp the overall volume dynamics more accurately, but also enables personalized adjustments for different instruments or sound components, thereby significantly improving teaching results and user experience. In addition, it supports users to better balance the volume of each frequency band in complex repertoires, further optimizing performance and personal skill development.

[0010] Optionally, the method also includes: during the user's performance, calling up a pre-selected and stored standard audio track, the standard audio track including recordings of professional performers, teaching repertoires or other high-quality music samples; obtaining a corresponding performance audio track based on the performance audio signal, and comparing the performance audio track with the standard audio track, wherein the comparison content includes volume, pitch, rhythm, and timbre; obtaining a corresponding audio track comparison result, determining a difference detection result between the performance audio and the standard audio track based on the audio track comparison result, and instantly feeding back the difference detection result through LED lights of different colors and display modes, wherein the difference detection results include volume difference, pitch difference, rhythm difference and timbre difference.

[0011] By adopting the above technical solutions, not only multiple key elements such as volume, pitch, rhythm and timbre are compared, but also the difference detection results are fed back instantly through LED lights of different colors and display modes. This combination of real-time comparison and visual feedback helps users quickly identify and correct subtle problems in performance, enhancing the ability of self-assessment and improvement. In addition, this method provides personalized practice guidance, allowing users to get specific improvement suggestions in each performance, thereby accelerating skill improvement, optimizing learning paths, and greatly improving the efficiency and fun of practice.

[0012] Optionally, the method also includes: dividing the volume range into multiple levels, each volume level corresponds to a specific volume range; calling the corresponding volume threshold, and determining the corresponding real-time volume level based on the performance audio signal and the volume threshold; allocating the corresponding real-time color based on the real-time volume level, and controlling the corresponding real-time color of the LED light to light up based on the real-time color.

[0013] By adopting the above technical solutions, users can not only intuitively see the changes in their volume in different time periods, but also help them better understand and control the volume levels in performance. This precise volume grading combined with color coding provides a clear and immediate feedback mechanism, enhances the user's perception and adjustment ability, thereby optimizing the practice effect and promoting the learning and mastery of more efficient volume control techniques.

[0014] Optionally, the method also includes: retrieving the corresponding difference detection result, determining the corresponding target difference element based on the difference detection result; adjusting the display priority of the LED light indication based on the target difference element, and controlling the LED light display based on the display priority; if the user corrects the target difference element, gradually reducing the display priority corresponding to the target difference element indication.

[0015] By adopting the above technical solutions, key target difference elements (such as pitch, rhythm, etc.) are determined based on the difference detection results, and the visual feedback of these elements is prioritized to help users quickly identify and focus on solving major problems. When the user successfully corrects the target difference element, the system gradually reduces its display priority, thereby guiding the user to shift from one focus to another, ensuring comprehensive improvement of performance. This intelligent priority management not only optimizes the pertinence and timeliness of feedback, but also enhances the user's practice experience, enabling them to master and consolidate correct performance techniques more efficiently.

[0016] Optionally, the method also includes: performing volume analysis on the performance audio signal, obtaining corresponding volume data, and generating a continuous volume curve based on the volume data; controlling a preset multi-channel LED light array to display the volume curve based on the volume curve, wherein each LED light represents a volume value at a time point; determining a corresponding time interval, and updating the display in the LED light array based on the time interval.

[0017] By adopting the above technical solution, the method provides users with an intuitive visual feedback of volume changes by generating a continuous volume curve and controlling the multi-channel LED light array to display in real time. Each LED light represents the volume value at a point in time, and the system updates the display at a set time interval to ensure the instant presentation of the volume change trend. This method not only helps users understand the volume dynamics in performance more clearly, but also promotes the mastery and improvement of volume control techniques, significantly improving the effect of practice and user experience.

[0018] Optionally, the method also includes: calling a pre-designed multi-channel LED light array; controlling the display of LED lights of different colors in the multi-channel LED light array at the same time based on the display mode, wherein each LED light in the LED light array can be independently controlled, and the color code of the LED light is fixedly assigned to a specific music element.

[0019] By adopting the above technical solution, the method uses LED lights of different colors to indicate specific musical elements (such as volume, pitch, rhythm) at the same time by calling a pre-designed multi-channel LED light array. Each LED light is independently controlled and fixedly assigned a color code. This method provides multi-dimensional real-time feedback, helping users to more intuitively understand and adjust multiple musical elements, significantly improving the efficiency and accuracy of performance learning.

[0020] In a second aspect, the present application provides an LED display method with volume level indication and singing and playing guidance, which adopts the following technical solution: An LED display method with volume level indication and singing guidance, In a third aspect, the present application provides an LED display method with volume level indication and singing and playing guidance, which adopts the following technical solution: A LED display method with volume level indication and playing and singing guidance comprises a processor, wherein the processor runs a program of any one of the above-mentioned LED display methods with volume level indication and playing and singing guidance.

[0021] In a fourth aspect, the present application provides a storage medium, which adopts the following technical solution: A storage medium stores a program of any one of the above-mentioned LED display methods with volume level indication and singing and playing guidance.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: By integrating real-time audio analysis with a visual feedback mechanism of a multi-channel LED light array, this method provides music learners with a richer and more personalized teaching experience. It not only instantly reflects key musical elements such as volume, pitch and rhythm in the performance, but also intuitively guides users to improve their performance skills by adjusting the brightness, color and flashing frequency of the LED light. In particular, the system introduces correct performance feedback - when the user plays correctly, the LED light remains green, and in the face of errors, it prompts in red, and flashes when the error persists, which effectively enhances the user's self-correction ability. In addition, by performing multi-band analysis of the audio signal and comparing it with the standard track, users can obtain detailed volume distribution and performance difference feedback, helping them to quickly identify and correct problems and optimize practice results.

[0023] Furthermore, the method dynamically adjusts the priority and display mode of the LED light indication to intelligently highlight key teaching points according to the user's actual performance, ensuring that the user can focus on solving the main problems and gradually improve the overall performance level. At the same time, a continuous volume curve is generated and displayed in real time through the LED light array, allowing users to intuitively understand the volume change trend during performance and promote the mastery of volume control techniques. This highly interactive and personalized feedback mechanism not only improves learning efficiency, but also encourages users to continue to try and explore, ultimately achieving efficient and enjoyable learning path optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is a flow chart showing an LED display method with volume level indication and singing and playing guidance according to an exemplary embodiment.

[0025] Figure 2 The present invention is a structural block diagram of an LED display method and device with volume level indication and singing and playing guidance according to an exemplary embodiment. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings.

[0027] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0028] The present application embodiment discloses an LED display method with volume level indication and singing guidance, referring to Figure 1 ,include: S100, when the user is performing a musical performance, the user's performance audio signal is collected in real time, the performance audio signal is preprocessed, the preprocessed performance audio signal is analyzed, and the corresponding music elements are extracted.

[0029] The system captures the sound of the user playing on the musical instrument in real time through built-in or external high-quality microphones or pickups. These devices can record audio signals with high fidelity and low latency, ensuring that the collected data accurately reflects the user's performance; if the user is using multiple instruments or multi-channel settings, the system can collect audio signals from multiple input sources at the same time to ensure that all performance details are fully covered.

[0030] It should be pointed out here that advanced digital signal processing (DSP) technology is used to remove environmental noise and other interfering signals to ensure the purity of the audio signal; audio signals from different sources are adjusted to a unified format and parameters, such as sampling rate, bit depth, etc., to facilitate the consistency and accuracy of subsequent analysis; at the same time, the audio signal is compressed in the dynamic range, so that the signal clarity and stability can be maintained even in the case of large volume changes.

[0031] In addition, algorithms such as Fast Fourier Transform (FFT) are used to convert audio signals from the time domain to the frequency domain, extract frequency information, and use it to identify pitch and timbre; the time characteristics of audio signals, such as start time, duration, and end time, can also be analyzed to detect changes in rhythm and volume. In addition, combined with machine learning algorithms, key music elements can be automatically identified and extracted, including but not limited to volume, pitch, and rhythm.

[0032] S110, adjusting the display mode of the LED light according to the music elements, and sending a volume level indication and a singing and playing guide to the user based on the display mode of the LED light.

[0033] The display mode includes the brightness and flashing frequency of the LED light. The specific execution process includes: Brightness control: Dynamically adjust the brightness of the LED light based on the extracted volume data. For example, the louder the volume, the brighter the LED light; the lower the volume, the dimmer the LED light.

[0034] Color coding: Assign specific colors to different musical elements. For example, volume is represented by yellow, pitch is represented by blue, and rhythm is represented by green.

[0035] Flashing frequency: Adjust the flashing frequency of the LED light according to the speed of the rhythm. When the rhythm is fast, the LED light flashes quickly; when the rhythm is slow, the LED light flashes slowly Through the visual feedback mechanism, the changes in musical elements are intuitively displayed, helping users to more clearly understand the volume, pitch and rhythm in the performance, thereby improving the practice effect.

[0036] S120, determining whether the user plays correctly. When the user plays correctly, the LED light displays green continuously. When the user plays incorrectly, the LED light is controlled to display red continuously. If the user continues to play incorrectly, the LED light is controlled to display red and flash.

[0037] The specific execution process of judging whether the user plays correctly is as follows: calling up the pre-stored standard audio track (such as recordings of professional performers and teaching tracks) and comparing it frame by frame with the user's real-time performance audio track to detect differences in pitch, rhythm, etc. Based on the comparison results, the system intelligently judges whether the user's performance has errors. For example, if the pitch deviation exceeds a certain threshold or the rhythm does not meet the standard, the system will mark it as an error. If the user makes multiple mistakes in the same position, the system will further confirm and record this error pattern.

[0038] Specifically, the process of judging based on the standard audio track is as follows: S1201, during the user's performance, retrieve the pre-selected and stored standard audio track.

[0039] The system maintains a library of standard audio tracks of various types, which can be recordings of professional performers, teaching tracks or other high-quality music samples; each track is strictly screened and labeled to ensure that it has high reference value in terms of pitch, rhythm, timbre, etc.

[0040] Users can select specific tracks or practice segments as standard tracks, and the system will automatically load the corresponding track data based on the user's selection; in addition, the standard track will be pre-processed before use, including format conversion, noise removal, etc., to ensure compatibility with the user's performance audio signal. The system also needs to synchronize the standard track with the user's real-time performance audio signal through time alignment technology to ensure consistency between the two on the timeline for accurate comparative analysis.

[0041] S1202, obtaining a corresponding performance track based on the performance audio signal, and comparing the performance track with the standard track.

[0042] The system captures the user's performance audio signal in real time through a high-quality microphone or pickup, and performs preliminary processing, such as noise filtering and standardization, to divide the real-time collected audio signal into multiple short time periods (such as several times per second), and uses spectrum analysis and time series analysis techniques to extract key music elements in each time period, such as volume, pitch, rhythm and timbre, and combines the extracted music elements into a complete performance track, which contains all the information of the user's performance for subsequent comparative analysis.

[0043] The system uses a multi-dimensional comparison algorithm to perform detailed comparisons of volume, pitch, rhythm, and timbre. For example: Volume Comparison: Calculates the average volume difference between two tracks over the same time period.

[0044] Pitch comparison: Use spectrum analysis technology to detect pitch deviations and determine pitch differences.

[0045] Rhythm comparison: Identify the matching degree of rhythm patterns through time series analysis and evaluate the accuracy of rhythm.

[0046] Tone comparison: Analyze the spectrum distribution and sound characteristics to determine the similarity of the tones.

[0047] The comparison results are quantified into specific values, for example, the pitch difference can be expressed in cents, the rhythm difference can be expressed in milliseconds, and the volume difference can be expressed in decibels. According to the user's skill level and current practice stage, the system can dynamically adjust the sensitivity and accuracy of the comparison; for beginners, a looser standard may be adopted; for advanced users, a more rigorous and detailed comparison can be provided.

[0048] S1203, obtaining the corresponding audio track comparison result, determining the difference detection result between the performance audio and the standard audio track based on the audio track comparison result, and immediately feeding back the difference detection result through LED lights of different colors and display modes.

[0049] The system summarizes the comparison results of each dimension and generates a detailed track comparison report. This report not only includes the overall performance evaluation, but also points out the specific differences and areas that need improvement. Based on the comparison results, the system uses the built-in intelligent analysis module to provide personalized improvement suggestions. For example, if the user frequently has intonation problems in a certain part, the system may recommend strengthening intonation training and provide relevant practice methods and resource links.

[0050] Based on the comparison results, the system classifies the differences found into volume differences, pitch differences, rhythm differences, and timbre differences, and sets priorities based on severity and importance. For example, serious pitch problems may be listed as the highest priority, while minor timbre differences may be ranked lower.

[0051] The system dynamically adjusts the LED display pattern based on the type and priority of the discrepancy. For example, a pitch problem might be indicated by a blue LED, a rhythm problem by a green LED, a volume problem by a yellow LED, and a timbre problem by a purple LED.

[0052] The system converts the difference detection results into the color and display mode of the LED light in real time. For example: Volume difference: When the volume is too high, the yellow LED light becomes brighter; when the volume is too low, the yellow LED light becomes dim. Pitch difference: When the pitch is too high, the blue LED light flashes; when the pitch is too low, the blue LED light stays on. Rhythm difference: When the rhythm is too fast, the green LED light flashes quickly; when the rhythm is too slow, the green LED light flashes slowly. Tone difference: When the tone does not meet the standard, the purple LED light lights up and stays on for a while.

[0053] The brightness and flashing frequency of the LED light can be dynamically adjusted according to the degree of difference. For example, a larger difference will cause the LED light to flash brighter or faster, while a smaller difference will appear as a gentler change. The system will automatically adjust the brightness of the LED light according to the ambient light conditions to ensure that the indication information is clearly visible in any lighting conditions.

[0054] It should be pointed out here that in steps S1201 to S1203 of the present application, when the color of the LED light overlaps with the light color mentioned in the embodiment of the present application, it does not mean that the functions overlap. This is just an example of the solution function of steps S1201 to S1203. When the colors representing different functions of LED lights mentioned later in the present application overlap, they are all the same as the above situation. This is only for the convenience of understanding the solution. In actual application, light overlap will not occur.

[0055] Through the above detailed steps, this method can not only collect and analyze the user's performance audio signal in real time, but also comprehensively compare it with the pre-stored standard audio track, extract the differences in volume, pitch, rhythm and timbre, and provide instant feedback to the user through the different colors and display modes of the LED light. This method significantly improves the efficiency and fun of music learning, helps users understand the subtle problems in performance more clearly, and promotes self-correction and skill improvement.

[0056] The method also includes: S1211, retrieve a pre-designed multi-channel LED light array.

[0057] It should be pointed out here that the system calls a pre-designed and configured multi-channel LED light array, which consists of multiple independently controlled LED lights. Each LED light can be individually set in color, brightness, and flashing frequency. The LED light array can be flexibly arranged according to the user's needs and practice scenarios, such as being installed in different locations of the instrument (such as above the keys, near the strings, or on the surface of the instrument) to ensure the best visual feedback effect.

[0058] The system connects the LED light array to the main control unit through a dedicated interface to ensure the stability and real-time performance of data transmission; before use, the system initializes and calibrates the LED light array to ensure that the color, brightness and response speed of each LED light are consistent to avoid display errors caused by hardware differences.

[0059] S1212, controlling the display of LED lights of different colors of the multi-channel LED light array at the same time based on the display mode.

[0060] Among them, the system assigns different colors to specific musical elements according to preset color coding rules. For example, volume is represented by yellow, pitch is represented by blue, rhythm is represented by green, and timbre is represented by purple.

[0061] The system controls the different color LED lights in the multi-channel LED array at the same time. Each LED light adjusts its color, brightness and flashing frequency according to the current state of the music elements; for example, at a certain moment, if the user's volume is too strong, the corresponding yellow LED light will become brighter; at the same time, if the pitch is too high, the blue LED light will flash; if the rhythm is too fast, the green LED light will flash quickly.

[0062] The system updates the display in the LED light array at fixed time intervals (such as several times per second) to ensure the real-time and accuracy of the feedback information. The state change of each LED light is based on the analysis results of the real-time collected performance audio signal, ensuring the immediacy and interactivity of the feedback.

[0063] By calling the pre-designed multi-channel LED light array and controlling the LED light display of different colors at the same time, this method realizes multi-dimensional real-time feedback of music elements such as volume, pitch, rhythm and timbre. Each LED light is independently controlled and fixedly assigned a color code to ensure that users can clearly and intuitively understand the changes in each music element, thereby optimizing the practice effect and improving learning efficiency and fun.

[0064] In the embodiment of the present application, the method further includes: S1221, analyzing the preprocessed performance audio signal and decomposing it into at least two frequency bands, and each frequency band corresponds to a specific frequency range.

[0065] Among them, the system uses spectrum analysis techniques such as fast Fourier transform (FFT) to convert the pre-processed audio signal from the time domain to the frequency domain. This enables the system to identify different frequency components in the audio signal; according to music theory and actual needs, the system divides the audio signal into multiple frequency bands, each of which corresponds to a specific frequency range. For example: low frequency band (0-300 Hz): mainly reflects the sound of low-frequency instruments such as bass and drums; mid-frequency band (300-3,000 Hz): mainly reflects the sound of mid-frequency instruments such as human voice and guitar; high frequency band (above 3,000 Hz): mainly reflects the sound of high-frequency instruments such as strings and treble percussion.

[0066] At the same time, the system can dynamically adjust the range and number of frequency band divisions according to the instrument or song type selected by the user. For example, more mid-frequency band subdivisions may be added in piano practice, while in guitar practice, more emphasis may be placed on the performance of low-frequency and high-frequency bands.

[0067] S1222: Allocate a specific color to each frequency band for corresponding LED light indication.

[0068] The system assigns a specific color to each frequency band to ensure that users can intuitively identify changes in each frequency band. For example: low frequency band: use red LED lights to emphasize the volume of the low frequency part; mid-frequency band: use yellow LED lights to highlight the volume of the mid-frequency part; high frequency band: use blue LED lights to show the volume of the high frequency part. It should be pointed out here that the color coding remains consistent throughout the practice process to avoid confusion for users due to frequent color changes. The color of each frequency band can be customized in the system settings, but once determined, it is fixed.

[0069] S1223, when performing, determining the corresponding actual volume based on the performance audio signal, and adjusting the brightness and flashing frequency of the corresponding LED lights based on the actual volume of each frequency band.

[0070] The system monitors the user's performance audio signal in real time and extracts the actual volume data of each frequency band according to the frequency band division. For example, the system calculates the average volume level of each frequency band within a certain time period.

[0071] According to the actual volume of each frequency band, the system dynamically adjusts the brightness of the corresponding LED light. For example, when the volume of a certain frequency band is high, the corresponding LED light will become brighter; when the volume is low, the LED light will become dimmer. The system can also adjust the flashing frequency of the LED light according to the rate of change of the volume. For example, when the volume of a certain frequency band suddenly increases, the LED light will flash quickly to attract the user's attention; when the volume is stable, the LED light will remain on.

[0072] The system updates the status of the LED light at a fixed time interval (such as several times per second) to ensure the real-time and accuracy of the feedback information. Each update is based on the latest audio signal analysis results, ensuring the immediacy and interactivity of the feedback; the system will automatically adjust the brightness of the LED light according to the ambient light conditions to ensure that the indication information is clearly visible under any lighting conditions.

[0073] By decomposing the pre-processed performance audio signal into multiple frequency bands and assigning specific colors to each frequency band for LED light indication, accurate monitoring and feedback of volume changes in different frequency ranges are achieved; based on the actual volume of each frequency band, the brightness and flashing frequency of the corresponding LED light are dynamically adjusted to help users understand and control the volume distribution of each frequency band more intuitively.

[0074] In the embodiment of the present application, the volume is also set in detail. Specifically, the method further includes: S1231: Divide the volume range into multiple levels, each volume level corresponding to a specific volume range.

[0075] The system divides the entire volume range into multiple levels according to music teaching and actual performance needs. For example, the volume can be divided into four levels: low volume (0-30 dB): suitable for soft background music or low-volume practice; medium-low volume (30-50 dB): suitable for daily practice and medium-intensity performance; medium-high volume (50-70 dB): suitable for formal performances or high-intensity performances; high volume (above 70 dB): suitable for large-scale performances or specially emphasized music sections.

[0076] Each volume level corresponds to a specific volume range and sets corresponding volume thresholds. These thresholds are determined through experiments and professional opinions to ensure their applicability to different instruments and scenarios. The system allows users to adjust the volume level division and threshold settings according to personal needs. For example, users can choose a more detailed volume grading, or adjust the range of each level according to the characteristics of a specific instrument.

[0077] S1232, retrieve a corresponding volume threshold, and determine a corresponding real-time volume level based on the performance audio signal and the volume threshold.

[0078] The system monitors the user's playing audio signal in real time and extracts the volume data at the current moment. Each collected data point represents the volume level at the current moment. The system compares the real-time collected volume data with the preset volume threshold to determine the level to which the current volume belongs. For example, if the real-time volume is 45 dB, the system will classify it as a "medium-low volume" level.

[0079] S1233, assigning a corresponding real-time color based on the real-time volume level, and controlling the corresponding real-time color of the LED light to light up based on the real-time color.

[0080] The system assigns a specific color to each volume level to ensure that users can intuitively identify the current volume level. For example: low volume: indicated by a light blue LED light with low brightness; medium-low volume: indicated by a blue LED light with moderate brightness; medium-high volume: indicated by a yellow LED light with high brightness; high volume: indicated by a red LED light with the highest brightness.

[0081] According to the volume level determined in real time, the system immediately adjusts the color and brightness of the corresponding LED light. For example, when the volume changes from low to medium-low, the LED light changes from light blue to blue; when the volume further increases to medium-high, the LED light changes from blue to yellow; when the volume reaches high, the LED light turns red. If the volume changes drastically in a short period of time, the system can also adjust the flashing frequency of the LED light to enhance the effect of the visual prompt. For example, when the volume suddenly increases, the LED light may flash quickly to attract attention.

[0082] By dividing the volume range into multiple specific levels and setting corresponding volume thresholds for each level, this method achieves accurate monitoring and feedback of volume changes. The system determines the current volume level based on real-time volume data and adjusts the color and brightness of the LED light accordingly, providing immediate and intuitive visual feedback. This method not only helps users better understand and control volume changes during performance, but also improves the pertinence and efficiency of practice.

[0083] For the difference detection results in the embodiment of the present application, the method further includes: S1204, retrieve the corresponding difference detection result, and determine the corresponding target difference element based on the difference detection result.

[0084] Among them, the system will store the difference detection results obtained by comparative analysis in the database after each performance. When the user practices next time or needs feedback, the system will automatically retrieve the most recent or specified difference detection results to ensure the continuity and consistency of the feedback information.

[0085] The system uses intelligent algorithms to analyze the difference detection results and identify the target difference elements that need the most improvement. For example, if the user's pitch problem is the most prominent, pitch will be determined as the target difference element; if there are many rhythm errors, rhythm will be given priority.

[0086] S1205, adjusting the display priority of the LED light indication based on the target difference factor, and controlling the LED light display based on the display priority.

[0087] The system dynamically adjusts the display mode of the LED lights according to the priority of the target difference element. For example, if pitch is determined to be the highest priority, all pitch-related LED lights (such as blue LED lights) will significantly enhance their visual prompt effects. The adjustment of display priority is not limited to color coding, but also includes brightness and flashing frequency. For example, the LED lights corresponding to high-priority difference elements will be brighter and flash more frequently to attract the user's special attention.

[0088] It should be noted here that the system controls the different color LED lights of the multi-channel LED array at the same time to ensure that the feedback information of each frequency band or musical element can be clearly presented. For example, when both the pitch and rhythm need to be improved, the blue LED light (pitch) and the green LED light (rhythm) will work at the same time, but the brightness and flashing frequency of the blue LED light will be higher to highlight its priority.

[0089] S1206: After the user corrects the target difference element, gradually reduce the display priority corresponding to the target difference element indication.

[0090] The system continuously monitors the user's performance and evaluates the improvement of the target difference element in real time. For example, if the user continues to play the correct pitch for a period of time, the system will record this change. When the system confirms that the user has successfully corrected the target difference element, it will gradually reduce the display priority of the element indication. For example, the originally brightly flashing blue LED light (pitch) will gradually dim, the flashing frequency will slow down, and eventually return to normal.

[0091] If the user corrects multiple target difference elements at the same time, the system will reset the priority according to the new difference detection results and adjust the LED display mode accordingly; for example, if the pitch problem has been solved but the rhythm problem still exists, the system will set the rhythm as the new highest priority and adjust the corresponding LED display. When the user successfully corrects the target difference element, the system will provide positive feedback, such as the green LED light continuously lights up to indicate "correct", which enhances the user's self-confidence and learning motivation.

[0092] Based on the execution steps from S1204 to S1206 above, centralized feedback and priority processing of key issues are achieved, and the display priority of the LED lights is dynamically adjusted according to the target difference elements, ensuring that users can quickly identify and correct the most important issues. Once the user successfully corrects the target difference element, the system will gradually reduce its display priority, guiding the user to gradually optimize the overall performance; not only improves the pertinence and efficiency of practice, but also enhances the user's self-correction ability and learning experience, and ultimately achieves a personalized and efficient music learning path.

[0093] In addition, the method includes: S1241, performing volume analysis on the performance audio signal, obtaining corresponding volume data, and generating a continuous volume curve based on the volume data.

[0094] The system captures the user's playing audio signal in real time through a high-quality microphone or pickup. Each collected data point represents the volume value at a point in time. The system extracts the average volume value in each time period. For example, multiple data points can be collected per second to obtain more detailed volume change information.

[0095] The system combines the extracted volume data into a continuous volume curve, which reflects the trend of volume changes over time and can intuitively display the dynamic changes in volume during the user's performance. The volume curve includes not only the instantaneous volume peak, but also the duration and change rate of the volume, providing a comprehensive view of volume changes.

[0096] S1242, controlling a preset multi-channel LED light array to display a volume curve based on the volume curve.

[0097] The system maps each data point on the volume curve to a corresponding LED light. For example, the volume value at a certain point in time corresponds to a specific LED light brightness. The higher the volume, the brighter the corresponding LED light; the lower the volume, the dimmer the LED light. The color coding of each LED light can be customized according to user preferences, but usually a gradient color is used to indicate volume changes, such as a gradient from blue (low volume) to red (high volume).

[0098] As mentioned above, the system controls the multi-channel LED array to display different colors of LED lights at the same time to ensure that the feedback information of each frequency band or music element can be clearly presented. For example, when the volume suddenly increases, the corresponding LED light will immediately become brighter and flash quickly to attract the user's attention.

[0099] S1243, determine a corresponding time interval, and update the display in the LED light array based on the time interval.

[0100] Among them, the system sets a fixed time interval (such as several times per second) according to actual needs to update the display in the LED light array. This time interval can be adjusted according to the user's practice speed and complexity to ensure the timeliness and accuracy of feedback. The system regularly updates the status of the LED lights at a set time interval to ensure the real-time and continuity of feedback information. In each time interval, the system will recalculate the current volume value and adjust the brightness and color of the LED lights accordingly. For example, if the volume suddenly increases at a certain moment, the system will immediately brighten the corresponding LED lights in the next time interval.

[0101] By performing volume analysis on the performance audio signal and generating a continuous volume curve, this method achieves accurate recording and visualization of volume changes, which not only helps users intuitively understand the volume changes in the performance, but also enhances the interactivity and fun of the practice, significantly improving the learning effect and user experience.

[0102] The present application embodiment discloses an LED display device with volume level indication and singing guidance, referring to Figure 2 , the devices include but are not limited to: The music element extraction module 200 collects the user's performance audio signal in real time when the user is performing, pre-processes the performance audio signal, and analyzes the pre-processed performance audio signal to extract the corresponding music elements, which include volume, pitch and rhythm; A display mode adjustment module 210 is used to adjust the display mode of the LED light according to the music elements, and send a volume level indication and a singing guide to the user based on the display mode of the LED light. The display mode includes the brightness and flashing frequency of the LED light. The performance judgment module 220 is used to judge whether the user plays correctly. When the user plays correctly, the LED light displays green and keeps on displaying. When the user plays incorrectly, the LED light is controlled to display red and keeps on displaying. If the user plays incorrectly continuously, the LED light is controlled to display red and flash.

[0103] An embodiment of the present application also discloses an LED display method with volume level indication and singing and playing guidance, including a processor, in which a program of the LED display method with volume level indication and singing and playing guidance described in any one of the above items is run.

[0104] The embodiment of the present application also discloses a storage medium storing a program of any one of the above-mentioned LED display methods with volume level indication and singing and playing guidance.

[0105] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An LED display method with volume level indication and singing guidance, characterized in that: include: When the user is playing, the user's playing audio signal is collected in real time, the playing audio signal is preprocessed, the preprocessed playing audio signal is analyzed, and the corresponding music elements are extracted, the music elements including volume, pitch and rhythm; Adjusting the display mode of the LED light according to the music elements, and sending a volume level indication and a singing and playing guide to the user based on the display mode of the LED light, wherein the display mode includes the brightness and flashing frequency of the LED light; Determine whether the user plays correctly. When the user plays correctly, the LED light will display green and continue. When the user plays incorrectly, the LED light will display red and continue. If the user continues to play incorrectly, the LED light will display red and flash.

2. The LED display method with volume level indication and singing guidance according to claim 1, characterized in that: The method also includes: Analyze the preprocessed performance audio signal and decompose it into at least two frequency bands, and each frequency band corresponds to a specific frequency range; Assign a specific color to each frequency band for corresponding LED light indication; When performing, the corresponding actual volume is determined based on the performance audio signal, and the brightness and flashing frequency of the corresponding LED lights are adjusted based on the actual volume of each frequency band.

3. The LED display method with volume level indication and singing guidance according to claim 1, characterized in that: The method also includes: During the user's performance, the pre-stored standard audio tracks are retrieved, which include recordings of professional performers, teaching tracks or other high-quality music samples; Acquire a corresponding performance track based on the performance audio signal, and compare the performance track with a standard track, wherein the comparison includes volume, pitch, rhythm, and timbre; Obtain corresponding track comparison results, determine difference detection results between the performance audio and the standard track based on the track comparison results, and instantly feedback the difference detection results through LED lights of different colors and display modes, wherein the difference detection results include volume difference, pitch difference, rhythm difference and timbre difference.

4. The LED display method with volume level indication and singing guidance according to claim 1, characterized in that: The method also includes: The volume range is divided into multiple levels, and each volume level corresponds to a specific volume range; Retrieving a corresponding volume threshold, and determining a corresponding real-time volume level based on the performance audio signal and the volume threshold; A corresponding real-time color is allocated based on the real-time volume level, and the real-time color corresponding to the LED lamp is controlled to light up based on the real-time color.

5. The LED display method with volume level indication and singing guidance according to claim 3, characterized in that: The method also includes: Retrieving a corresponding difference detection result, and determining a corresponding target difference element based on the difference detection result; adjusting the display priority of the LED light indication based on the target difference factor, and controlling the LED light display based on the display priority; If the user corrects the target difference element, the display priority corresponding to the target difference element indication is gradually reduced.

6. The LED display method with volume level indication and singing and playing guidance according to claim 2, characterized in that: The method also includes: Performing volume analysis on the performance audio signal, acquiring corresponding volume data, and generating a continuous volume curve based on the volume data; Based on the volume curve, a preset multi-channel LED light array is controlled to display the volume curve, wherein each LED light represents a volume value at a time point; A corresponding time interval is determined, and a display in the LED light array is updated based on the time interval.

7. The LED display method with volume level indication and singing and playing guidance according to claim 1, characterized in that: The method also includes: Retrieve a pre-designed multi-channel LED light array; Based on the display mode, different colors of LED lights of a multi-channel LED light array are controlled at the same time, wherein each LED light in the LED light array can be controlled independently, and the color codes of the LED lights are fixedly assigned to specific music elements.

8. An LED display device with volume level indication and singing guidance, characterized in that: include: A music element extraction module collects the user's performance audio signal in real time when the user is performing, pre-processes the performance audio signal, and analyzes the pre-processed performance audio signal to extract corresponding music elements, including volume, pitch and rhythm; A display mode adjustment module, which is used to adjust the display mode of the LED light according to the music elements, and sends a volume level indication and a singing and playing guide to the user based on the display mode of the LED light, wherein the display mode includes the brightness and flashing frequency of the LED light; The performance judgment module is used to judge whether the user plays correctly. When the user plays correctly, the LED light displays green and keeps on displaying. When the user plays incorrectly, the LED light is controlled to display red and keeps on displaying. If the user plays incorrectly continuously, the LED light is controlled to display red and flash.

9. An LED display method with volume level indication and singing guidance, characterized in that: The invention comprises a processor in which a program of an LED display method with volume level indication and singing and playing guidance as claimed in any one of claims 1 to 7 is run.

10. A storage medium, characterized in that: A program is stored for the LED display method with volume level indication and singing guidance as described in any one of claims 1-7.

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